In the oceans, the most widespread type of plastic pollution may be the kind you can’t see.
A new study published Wednesday in the journal Nature estimates that the North Atlantic Ocean alone contains 27 million metric tons of nanoplastic — plastic particles 100 times smaller than the width of a human hair. That figure is 10 times higher than previous estimates of plastic pollution of all sizes across all the world’s oceans, according to the study’s authors.
The research represents one of the first attempts to quantify marine nanoplastic pollution; previous efforts were constrained by limitations in detection technology. The study suggests that the mass of nanoplastics in the North Atlantic is greater than that of their much larger counterparts, microplastics and macroplastics. Microplastics range in width between 0.001 millimeters and 5 millimeters, making them up to 5 million times bigger than nanoplastics. Macroplastics are even larger.
Helge Niemann, a researcher at the Royal Netherlands Institute for Sea Researc... Read more
